1415 Members Profile, Bio, Age, Career & Net Worth
In the vast landscape of Korean indie music, few duos have captured the hearts of listeners quite like 1415 Members (열사 열오). Known for their emotive folk-pop sound and seasonal storytelling, this duo has carved out a unique space in the industry, earning them the nickname the “Vivaldi of Korean indie“. But who are the members of 1415? What is their story, and why have they become such a beloved act in the Korean music scene?
1415 is a male duo that debuted in 2017 under ON THE RECORD, a label under Universal Music Korea. The group consists of vocalist Joo Seong-geun and guitarist/vocalist Oh Ji-hyun. Their music blends elements of K-indie, folk, and rock, creating a warm, acoustic sound that resonates with listeners of all ages.
What makes 1415 truly special is their mission: to write songs for every season and every kind of weather, with the goal of becoming the background music for every scene in their listeners’ lives. Their name, 1415, comes from the number of guitar chords they often use when making music together, symbolizing their collaborative creative process.
Quick Facts Table
Table of Contents
Who Is 1415?
1415 is a South Korean male duo that debuted on April 21, 2017, with their first digital mini-album DEAR: X. The duo consists of Joo Seong-geun (주성근), who handles vocals, and Oh Ji-hyun (오지현), who plays guitar and provides vocals. Their music is characterized by warm acoustic melodies, heartfelt lyrics, and a folk-pop sensibility that has earned them a dedicated following.
The name 1415, pronounced “il-sa-il-o” in Korean, comes from the number of guitar chords they often use when making music together. This name reflects their collaborative approach to songwriting and their shared musical language.
1415 gained significant attention with their debut track “Draw the Line” (also known as “Draw a Line, Please”), which became a hit in the indie scene. They have since released numerous songs and EPs, including “When It Snows,” “Surfer,” “naps!,” and “Trouble.” The duo has also contributed to various OSTs, enhancing the emotional depth of popular Korean dramas.
In November 2025, 1415 announced a major change: Oh Ji-hyun stepped back from group activities, and 1415 transitioned to a one-person band led by Joo Seong-geun. Despite this change, Oh Ji-hyun continues to support 1415 from the sidelines.
Group History
Formation and Pre-Debut
The story of 1415 began in 2014 when Joo Seong-geun was working as a vocal tutor. Oh Ji-hyun came to his studio as a student, and the two hit it off immediately. Despite a seven-year age gap—Joo is older—they formed a strong musical connection.
At the time, Joo Seong-geun was attending a Korean medicine college, while Oh Ji-hyun was working in the fashion industry and seeking a new path. Their shared passion for music brought them together, and they began creating music as a duo.
Official Debut
1415 officially debuted on April 21, 2017, under the label ON THE RECORD (a subsidiary of Universal Music Korea) with the digital mini-album DEAR: X. Their debut title track “Draw the Line” (also known as “Draw a Line, Please”) quickly gained attention and established them as a promising new act in the indie scene.
The duo’s debut was a response to IU’s popular song “See You on Friday,” which added to the buzz surrounding their release. They were recognized as “Super Rookie” in the indie scene.
Breakthrough Success
Following their debut, 1415 continued to release music that resonated with listeners. Their 2018 single “When It Snows” and “Surfer” became fan favorites. The duo’s ability to capture seasonal emotions through music earned them the nickname the “Vivaldi of Korean indie”.
In December 2021, they released the EP “naps!”, featuring a collaboration with DAY6’s Wonpil on the title track. The album was praised for its bright pop sounds and relaxed melodies, helping to keep the winter blues at bay.
In August 2023, 1415 released the digital single “Trouble” with the B-side track “Coffee”. This was their first new project in over a year and a half. The single was inspired by IVE’s 2022 hit “Love Dive”. Interestingly, “Trouble” was the first song for which the duo worked entirely on their own, without outside producers.
Major Career Milestones
- 2017: Debuted with DEAR: X and won the Shinhan Card Rookie Gold Award
- 2018: Released FROM: X and gained recognition for their seasonal storytelling
- 2021: Released “naps!” featuring DAY6’s Wonpil
- 2023: Released “Trouble” and “Coffee”
- 2025: Announced transition to a one-person band led by Joo Seong-geun
Recent Activities
In November 2025, 1415 announced a significant change in their group structure. Through their official account, Joo Seong-geun and Oh Ji-hyun stated that after long discussions, they had decided that 1415 would continue its activities as a one-person band led by Joo Seong-geun.
Oh Ji-hyun decided to step back from future activities but will continue to support 1415 from her own position. The group will continue its music centered around Joo Seong-geun without recruiting new members.
This announcement marked a new chapter for 1415, as fans continue to support both members in their respective paths.
Agency and Management
1415 is under Universal Music Korea. They were previously under ON THE RECORD, a label that is part of Universal Music Korea.
The duo has been with Universal Music Korea since their debut, and the agency has supported their releases and activities throughout their career.
Member Profiles
Joo Seong-geun (주성근) Profile
Personal Information
Group Role
| Category | Details |
|---|---|
| Position(s) | Vocalist, Composer, Songwriter |
| Representative Emoji | Not officially used |
| Training Period | This information is not publicly available |
Early Life and Education
Joo Seong-geun was born on February 27, 1984, in South Korea. Before pursuing a career in music, he attended a Korean medicine college. However, his passion for music led him to become a vocal tutor.
Career Journey
Pre-debut Activities
Before forming 1415, Joo Seong-geun worked as a vocal tutor at a music academy. In 2014, he met Oh Ji-hyun when she came to his studio as a student. The two hit it off and began working on music together.
2017: Debut with 1415
Joo Seong-geun debuted as a member of 1415 on April 21, 2017, with the mini-album DEAR: X. He contributed as a vocalist, composer, and songwriter.
2017–2025: Group Activities
Throughout 1415’s career, Joo Seong-geun was the lead vocalist and primary songwriter. He participated in all of the group’s releases, including FROM: X (2018), “naps!” (2021), and “Trouble” (2023). He also appeared on the survival show Sing Street in 2021.
2025–Present: One-Person Band
In November 2025, it was announced that 1415 would continue as a one-person band led by Joo Seong-geun. Oh Ji-hyun stepped back from activities, and Joo Seong-geun now leads the group as a solo artist.
Family Background
Joo Seong-geun’s family background is not publicly available.
Relationship Status
As of 2026, Joo Seong-geun’s relationship status is not publicly available.
Net Worth
Joo Seong-geun’s individual net worth is not publicly available. As a member of 1415, he has earned income from album sales, streaming, performances, OST contributions, and songwriting royalties. His net worth is expected to continue growing with his activities as a one-person band.
Social Media Profiles
- Instagram: @1415_joo
Interesting Facts About Joo Seong-geun
- He was born on February 27, 1984, making him a Pisces.
- He is seven years older than fellow member Oh Ji-hyun.
- He was attending a Korean medicine college before pursuing music.
- He worked as a vocal tutor before forming 1415.
- He is friends with Wonpil from DAY6.
- He recommends people try chimac (fried chicken and beer).
- He prefers being indoors rather than being outside.
- He prefers sleep-talking over snoring.
- He likes bungee jumping more than going on a roller coaster.
- He tosses and turns a lot before falling asleep.
Oh Ji-hyun (오지현) Profile
Personal Information
Group Role
| Category | Details |
|---|---|
| Position(s) | Vocalist, Guitarist, Composer, Songwriter, Maknae |
| Representative Emoji | Not officially used |
| Training Period | This information is not publicly available |
Early Life and Education
Oh Ji-hyun was born on April 30, 1994, in South Korea. Before pursuing music, he worked in the fashion industry and was seeking a new path. he then began training as a vocalist and met Joo Seong-geun when he came to his studio as a student.
Career Journey
Pre-debut Activities
Before joining 1415, Oh Ji-hyun worked in the fashion industry. he sought a new path and began vocal training, which led her to Joo Seong-geun’s studio in 2014. The two formed a musical connection and began working together.
2017: Debut with 1415
Oh Ji-hyun debuted as the youngest member (maknae) of 1415 on April 21, 2017, with DEAR: X. he contributed as a vocalist, guitarist, composer, and songwriter.
2017–2025: Group Activities
Throughout 1415’s career, Oh Ji-hyun was the guitarist and provided vocals. he participated in all of the group’s releases and contributed to songwriting and composing. he also appeared on the survival show Sing Street in 2021.
2025–Present: Departure and Support
In November 2025, 1415 announced that Oh Ji-hyun would step back from future activities. he will continue to support 1415 from the sidelines with warm encouragement and various forms of assistance.
Family Background
Oh Ji-hyun’s family background is not publicly available.
Relationship Status
As of 2026, Oh Ji-hyun’s relationship status is not publicly available.
Net Worth
Oh Ji-hyun’s individual net worth is not publicly available. As a member of 1415, he has earned income from album sales, streaming, performances, OST contributions, and songwriting royalties.
Social Media Profiles
Oh Ji-hyun’s personal social media profiles are not publicly available.
Interesting Facts About Oh Ji-hyun
- he was born on April 30, 1994, making her a Taurus.
- he is the youngest member (maknae) of 1415.
- he is seven years younger than fellow member Joo Seong-geun.
- he worked in the fashion industry before pursuing music.
- he is friends with Wonpil from DAY6.
- he recommends fans visit Itaewon, Hongdae, and Kyeongbokgung.
- he describes herself with three words: color, low & high, and handsome.
- he likes both cats and dogs.
- he prefers pizza over gimbap.
- he recommends the song “Draw the Line” from their debut album.
Former Members
As of November 2025, Oh Ji-hyun has stepped back from 1415’s activities. While he is not officially a “former member” in the sense of leaving the group entirely, he no longer participates in performances or new music releases. he continues to support 1415 from the sidelines.
1415 has stated that they will not recruit new members and will continue as a one-person band led by Joo Seong-geun.
Discography
Studio Albums
1415 has not released a full-length studio album. Their discography consists primarily of EPs, mini-albums, and digital singles.
EPs and Mini Albums
| Title | Release Date | Type |
|---|---|---|
| DEAR: X | April 21, 2017 | Digital mini-album |
| FROM: X | 2018 | Digital mini-album |
| naps! | December 8, 2021 | EP |
Digital Singles
OST Appearances
1415 has contributed to numerous Korean drama OSTs:
Notable Songs
Music Style and Influence
1415’s music is characterized by a folk-pop sound with elements of ballad and rock. Their songs often feature warm acoustic guitar melodies, layered vocals, and heartfelt lyrics that capture the emotions of everyday life.
Musical Identity
The duo has a mission to write songs for every season and every kind of weather. This seasonal approach has earned them the nickname “Vivaldi of Korean indie”—a reference to the famous composer Antonio Vivaldi, who wrote “The Four Seasons”.
Artistic Evolution
Over the years, 1415 has evolved from a simple acoustic duo to a more polished and layered sound. Their 2021 EP “naps!” featured a collaboration with DAY6’s Wonpil, adding a pop sensibility to their music.
Their 2023 single “Trouble” showcased a more dreamy, multi-dimensional sound, with the duo layering their voices over and over to create a feathery audio effect.
Influences
1415 has cited various influences, including:
- IVE — Their 2022 hit “Love Dive” inspired the flirtatious tone of “Trouble”
- IU — Their debut was a response to IU’s “See You on Friday”
- DAY6 — They collaborated with DAY6’s Wonpil on “naps!”
Awards and Achievements
1415 has been recognized as a “Super Rookie” in the indie scene since their debut. They have also been featured on the survival show Sing Street in 2021.
Tours and Concerts
1415 has performed at various venues and events throughout their career, including:
- Monday Project Season 6: Song of the Moment — A performance series
- Various indie music festivals and concerts
Specific tour dates and setlists are not publicly available.
Brand Endorsements and Ambassadorships
1415 has not publicly announced any brand endorsements or ambassadorships.
Social Media Presence
| Platform | Handle |
|---|---|
| @1415.official | |
| Instagram (Joo Seong-geun) | @1415_joo |
1415 does not have a dedicated group Instagram account; however, Joo Seong-geun maintains an active personal Instagram account.
Net Worth and Revenue Sources
As a duo and now a one-person band, 1415’s income comes from various sources:
Primary Income Sources
- Album Sales — Revenue from physical and digital album sales, including EPs like DEAR: X, FROM: X, and naps!
- Music Streaming — Income from platforms like Spotify, Apple Music, Melon, and others
- Live Performances — Concerts, festivals, and indie music events
- OST Appearances — Contributions to Korean drama OSTs
- Songwriting Royalties — Both members write and compose their own music
- Merchandise — Official group merchandise
Estimated Net Worth
Individual net worth figures for Joo Seong-geun and Oh Ji-hyun are not publicly available. As indie artists under Universal Music Korea,
20 Interesting Facts About 1415
- The name 1415 comes from the number of guitar chords they often use when making music together.
- They are nicknamed the “Vivaldi of Korean indie” because they write songs for every season.
- 1415 debuted on April 21, 2017, with the mini-album DEAR: X.
- The duo consists of Joo Seong-geun (vocals) and Oh Ji-hyun (guitar/vocals).
- They have a seven-year age gap—Joo was born in 1984 and Oh in 1994.
- Joo Seong-geun was attending a Korean medicine college before pursuing music.
- Oh Ji-hyun worked in the fashion industry before becoming a musician.
- They first met in 2014 when Oh came to Joo’s studio as a vocal student.
- Both members are cool person in the korea..
- Their debut was a response to IU’s song “See You on Friday”.
- They won the Shinhan Card Rookie Gold Award in 2017.
- Their 2021 EP “naps!” featured a collaboration with DAY6’s Wonpil.
- Their 2023 single “Trouble” was inspired by IVE’s “Love Dive”.
- They recorded “Trouble” over 100 times to achieve a multi-dimensional sound.
- They have contributed to OSTs for dramas like Her Private Life and When I Was the Most Beautiful.
- Joo Seong-geun appeared on the survival show Sing Street in 2021.
- Oh Ji-hyun is the youngest member (maknae) of 1415.
- Joo Seong-geun prefers being indoors rather than being outside.
- Oh Ji-hyun describes herself with three words: color, low & high, and handsome.
- In November 2025, 1415 transitioned to a one-person band led by Joo Seong-geun.
Frequently Asked Questions (FAQ)
1. Who are the members of 1415?
1415 originally consisted of two members: Joo Seong-geun (vocalist) and Oh Ji-hyun (guitarist/vocalist).
2. When did 1415 debut?
1415 debuted on April 21, 2017.
3. What does 1415 mean?
The name comes from the number of guitar chords they often use when making music together.
4. Who is the leader of 1415?
1415 does not have an officially designated leader.
5. Who is the oldest member of 1415?
Joo Seong-geun (born February 27, 1984) is the oldest member.
6. Who is the youngest member of 1415?
Oh Ji-hyun (born April 30, 1994) is the youngest member (maknae).
7. What agency manages 1415?
1415 is under Universal Music Korea.
8. What is 1415’s fandom name?
1415’s official fandom name is not publicly available.
9. What genre of music does 1415 perform?
1415 performs K-indie, folk-pop, ballad, and rock music.
10. What is 1415’s most popular song?
Their debut track “Draw the Line” (also known as “Draw a Line, Please”) is one of their most popular songs.
11. Has 1415 released any full-length albums?
No, 1415 has released EPs and digital singles but no full-length studio albums.
12. Did 1415 appear on any survival shows?
Yes, the members appeared on Sing Street in 2021.
13. Has 1415 won any awards?
Yes, they won the Shinhan Card Rookie Gold Award in 2017.
14. What is the age difference between the members?
There is a seven-year age gap between Joo Seong-geun (born 1984) and Oh Ji-hyun (born 1994).
15. Is 1415 still active?
Yes, 1415 is still active as a one-person band led by Joo Seong-geun as of 2026.
16. Why did Oh Ji-hyun leave 1415?
Oh Ji-hyun stepped back from activities in November 2025 but continues to support 1415 from the sidelines.
17. Will 1415 recruit new members?
No, 1415 will continue without recruiting new members.
18. What are some of 1415’s notable songs?
Notable songs include “Draw the Line,” “When It Snows,” “Surfer,” “naps!,” and “Trouble”.
19. Has 1415 contributed to any OSTs?
Yes, they have contributed to OSTs for dramas including Her Private Life, When I Was the Most Beautiful, and others.
20. What is the group’s current status?
1415 is currently active as a one-person band led by Joo Seong-geun.
Conclusion
1415 has carved out a unique and enduring place in the Korean indie music scene. From their humble beginnings as a duo brought together by fate in a vocal studio, to their rise as the “Vivaldi of Korean indie,” Joo Seong-geun and Oh Ji-hyun have created a body of work that resonates deeply with listeners.
More Info About Kpopbio
